My wife and I currently have one of the original Tempur 20cm King-size mattresses and we love it. It now needs replacing after 9/10 years use, mainly due to my weight (we never expected it to last the full 15 years of the warranty), so we are looking for the closest non-Tempur match at a more reasonable price. I like the honesty and detail of your website and am torn between your Genesis 2 and the Ergo flex you compare it with as these seem the most likely to be a match for our old Tempur. The Ergoflex uses the same 85kg density foam as the Tempur so initially that sounds a better match. I am overweight (varies between 16st and 24st unfortunately) and acknowledge that I will have to replace a mattress more often than most. I am always sceptical of mattress warranties - too many exclusions to be of any use. Having said that, they do give some guidance as to the expected longevity and your three year warranty vs ten for the Ergoflex and fiften for the Tempur doesn't compare well. I don't expect it last the full quoted amount but maybe 50-65% of the expected 'normal' weight period. So with an overweight sleeper such as myself, would you expect the whole mattress to need replacing or just the topper?

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